Can I copy one sketch to another plane which is not parallel to the sketch plane?
Yes you can. Choose the sketch to copy > Edit from top of screen, select Copy, select new plane, > Edit and paste to the new plane.
tutorial - how to copy sketch to another plane
Answered with a tutorial: https://grabcad.com/tutorials/can-i-copy-one-sketch-to-another-plane-in-sw
yes it is possible .you can do this by using convert entities in sketch