How many electrons would have to be removed from a copper penny to leave it with a positive charge of 10^-7 c. Share with your friends Share 0 Ravi G answered this Kindly refer the following link. https://www.meritnation.com/ask-answer/question/how-many-electrons-would-have-to-be-removed-from-a-copper-pe/electric-charges-and-fields/7190567 0 View Full Answer