I wouldn't try it. At ten days after hatch, she's going to have "her babies" cemented in her mind, and any other chicks aren't seen as poor helpless orphans that need a momma, but as interlopers and competition for food and resources for her chick.
I think the best outcome you can expect is that she'll tolerate them in the same coop when her chick is several weeks old, and they can grow up together.
Here's another possible option:
My olive egger seems pretty intent on staying in her nesting box. She will have only been sitting for 8 days or so when they are due, but she has been puffed up and more assertive with others (lower in the pecking order) longer than that. She is pretty docile. I am going to have my husband bring another dog kennel home and lock her in there with her golf balls tonight. If she adjusts well to the move, could I try to give her some babies (or even some eggs that are close to hatching)?
I could put both kennels close together and in view of the babies and see how both hens react or put a few under each and be there early in the morning to rescue them if needed.
I don't mind brooding chicks myself, but it seems like the transition to the flock is so much easier with a momma. Any advice on a good game plan would be great.