Originally Posted by kbot6789
...this might prefent the rust from comeing to the surface after its plated...
If there is rust on the base metal and you cover it with paint, plating, etc. without treating the rust it WILL bubble the paint, chrome, etc. eventually.
The corrosion will continue unabaited if not removed or treated. In fact, depending on what is used to plate, you may even exacerbate the situation by introducing "bi-metallic corrosion".
Just a word to the wise from a guy with airframe metalworking experience.