It depends on how thick the plating is and how much needs to be removed to make it smooth.
If enough must be removed to expose the underlying metal, then you will need to
use some type of coating such as a rust inhibitor to protect the metal .
I use a synthetic as opposed to petrolium products, since petrolium will degrade the handle material
and eventually cause it to crack or break.
I use Rem-Oil for the metals , which is safe for plastics and rubber and use Armor-All for the plastics or rubber parts,to preserve them.
Less complicated to just get the full metal version and replace the handle covering if need be,
but we all like to save money when we can.

I have both types and have yet to have any problems with either.
What is the best way to educate the masses? ... " A television in every home."
What is the best way to control the masses? ... " A television in every room."
From "Charlie" AKA " Flowers for Algernon"