I have done small scale tank plating at home in the past, very easy and effective. Main criteria is making sure that the surface to be plated is free from grease and contaminants, surface finish relies on base metal surface unless you are doing deep/thick plating with something like copper and then buffing that to remove high spots and produce a high polish substrate.
We had a Brush Plating station for the recovery of small components dimension wise and protection plating to high tolerances for Aero components. (Very high accuracy of film thickness achievable with good time/current/method control)
Solutions not cheap, at least the ones we used weren't and needs a bit more kit to ensure controlled surface coating but is a lot less hazardous from the volume of chemicals involved and disposal problems.
I think I've got the COSH assessments somewhere. Will try and dig them out.
Edit: I used to copper plate names on to brass items for gifts and highlight horse brasses with copper details for farming friends who had collections, this in the days when we had no mains electricity and relied on batteries or accumulators for power.