As a note, these forums are JK Wranglers, which is the body style and build from 2007 - early 2018. The 4xe Wrangler variant is of the JL body style, and while there are probably some members here who have both a JK and a JL, you would be better served by looking for a JL forum. Simply for the reason that few here own what you do.
that is a 4.5 inch offset, so a pretty typical one for JKs, and I'm sure for JLs as well. I didn't realize that 285/70s is a factory size now. Basically 33" tires. Should be fine. I think that is exactly what I have on my Jeep. You can dig through my backlog for pics of them with a 2.5 lift.