Can small piece of ginger from grocery store be planted to grow more?

You would need a root to pant and be successful.

Since these are tunbors if it's fresh

check this out. https://www.google.com/search?q=can+i+plant+ginger.from.the+store%3F&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari

Ginger is very invasive in a garden, my neighbor planted hers in huge pot planted into the garden area, when she wants some she just digs up a section out of the pot and replaces soil.

yes it's a tuber just get piece from organic section so it has not been sprayed to keep from sprouting videos how to--https://www.youtube.com/results?search_query=DIY+growing+ginger+from+store+

We actually grew the grocery store ginger. The ginger roots in grocery stores have been sprayed a product to prevent sprouting. To get around this you'll need to rinse it off everyday, use cool tap water and let it set on the sink or a plate, ours took about a month of this treatment. When you look at the bottom side and see roots starting, then you can put it in dirt. We keep ours in a flower pot and bring it in overwinter.