First, welcome to iRV2.
Now to the question. The dry weight of a trailer is pretty useless. The dry weight is a bare bones trailer and does not include any items listed as an optional item, such as awning, A/C, microwave, batteries and water or propane. A 28' trailer can easily be 750 to 1000# over the dry weight when loaded for travel.
Next, the 9200# tow rating is another number that has to be viewed with a lot of caution. This weight is based on a base model truck, no accessories, no hitch, no cargo and no passengers other than a 150# driver. As a rought rule of thumb, most people will use 80% of the manufacturers maximum tow rating as the weight of a loaded trailer when looking at trailers. So 80% of 9200# is 7380#.
Based on this estimate, you will only have 300# of capacity with which to load your empty trailer. This is too close to estimate, so you need to weight you truck as loaded fro travel with passengers and add about 150# for the hitch system. This is your Laden vehicle weight or LVW.
Now look on the left door jamb sicker and locate the GVWR for your truck, This is most your truck can weigh on the tow axles when fully loaded.
In the owners manual, there should be a GCWR number for your specific cab and engine combination. This is the most your truck trailer can weight in combination when fully loaded.
GVWR - LVW = maximum loaded trailer hitch weight.
GCWR - LVW = maximum loaded trailer weight.
You will see people pulling larger trailers, which does not make it right. You need to weight the truck and work from there.
Personally, I feel that that size trailer will not be a good combination with the truck. That trailer is better suited to a 3/4 ton truck for good performance.
Oh, please do not use the CAPs lock key. All CAPS is consider rude on the internet.