Keeping things simple, steel is an alloy of iron and carbon, whereas stainless steel is essentially an alloy of iron, carbon and chromium or iron, carbon chromium and nickel.
All forms of steel, whether they be ordinary iron and carbon alloy or stainless steel are made from a melt in furnaces. Because of this stainless steel cannot be plated to ordinary steel by chemical means either.
Stainless steel can be welded to ordinary steel but a TIG welder is required, but this wouldn't suit your purposes.
Hot dipping is unlikely to be an option due to the melting temperatures of ordinary steel and stainless steel. Depending on the type of stainless steel, the temperatures will be similar or higher for stainless steel. This would damage the main item made from ordinary steel.
In my initial answer I stated that electroplating stainless steel onto steel was not possible. Thanks to references to scientific papers supplied by @starrise and @Jaroslav Kotowski, it appears a form of stainless steel can be electro-deposited onto copper and stainless steel items. There was no mention of depositing onto ordinary steel. A deposit 23 um (0.023 mm, 0.9055 thousandths of an inch) thick was deposited in one set of experiments. I haven't found any references that claim the process have been commercialized.