If you have flaking chrome (not clearcoat, but the actual chrome) or pits (where rust has eaten through the chrome) in the metal, then no, it won't be easily restored (restorating being like new).
I think that wheel will clean up ok. Just use some aircraft stripper and get the old clear coat off, then respray it with clear coat or leave it bare chrome. From what I can see in the pics that looks to be in good shape, so should clean up well.
One set of mine looked like yours, and they cleaned up great. The other set I had some minor rust pits around the inner ring, and they still look good, but I have to peridically clean them up again as once you get pits in the surface they will rust again.
85 CJ7 258, borla header, Team Rush, MC2100 ,optima batt, Warn 8274, agr super box 2 & pump, T5 w/ B&M shifter, centerforce 2, superior 1 piece axles, warn hubs 2.5 in lift, 31" BFG MT
85 CJ7 258, A/C, T176, MC2100, Team Rush, Warn XD8000i, superwinch hubs, 3in lift 31" BFG AT/KO