Never plated anything that large, but enough chemical and a big enough bath and I’m sure I can do it.
Yank one off and I’ll give it a shot. If it works, yay, you pay. If not, worst case you just paint or powder coat it.
You’re 100% positive it’s stainless and not chrome plated right. If it’s chrome it will need to be removed(blasted off) then the surface will need to be prepped(sanded and buffed very smooth) to get that polished chrome like finish.