Welcome!
And you will get all kinds of responses to your question, and even people who are giving you advice while quoting Youtube videos.
Short trips, local, low altitude, can see your dog run away for 2 days if the corn is harvested, a 7k-8klb trailer is no problem for your truck, you just won't have bragging rights about your big engine at the campground. But noone will know unless you tell them...and don't have too many beers and bet anyone you'll race them and win.
Cross country, long trips, altitude, any weather, higher duty cycle than your avg weekend warrior, chassis will handle it, but power will be more anemic in less than optimal conditions unless you're ok with that. I'd stick to around 5klbs but in reality, it's not the weight as much as the wind resistance.
Truck will be safe, but keep low expectations about how well it will perform on grades and headwinds.
Example, new Chevy 10 speed 5.3 (more power and more gears), towing 6klbs med profile (boat with tower/speakers) trailer, low altitude, can only maintain about 60-65mph top speed, right foot mashed into the carpet up a 5-6% grade. Take away 70hp, 80 ft-lbs and 4 gears to compare directly to your powertrain.
I'd tow with it all day long, just giving you comparison of power.
Don't get balled up in the people who will incessantly preach payload and ratings. Unless you wanna be that guy who sit's up nights fretting whether the wife has packed 2 cans of corn beef hash or 4 and whether you'll make it to camp.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold