Mike:
Sharpening will take off the plating on an edge. But, this isn't something to worry about! Actually, this is the way they come from the shop, as they have to sharpen them up first. these are stainless steel knives, so your non-plated edge (if the blades are plated) won't rust, unless you are around salty water a lot and don't clean your knife.
This is the same story with coated carbon steel blades. The edges aren't coated as the knife has been sharpened. You have to care for the edge especially on a coated carbon steel knife, as the edge can rust and rust can creep under the coating.
Either way, a lottke bit of Knife TLC and you won't have anything to worry about.