The ends of this rod are electroplated with copper to which the brass terminal heads are soldered.
Electroplated surfaces may be rougher, but will not be smoother than the original unplated surface.
The articles to be silvered are scratch-brushed, washed, and electroplated, till they begin to look undesirably rough.
Wax, being a non-conductor, cannot be electroplated unless a conducting surface be first applied.
By the Bright process, platinum can be deposited on any surface which can be electroplated with other metals.