Copying and Pasting entire part

Do you want to copy-paste or do you want to mirror the features?

I agree with Stephen.  You are probably better off mirroring the entire part, about the desired surfce or plane.  See the Help Center document for additional information:

About the Mirror Feature

Thanks,

Amit

If you would like to put the parts in a package, for shipping, for example, then you can simply assemble two parts back-to-back.

Otherwise, you need to say more about your specific requirements, in order to get the best response from the community.

In this case, there are obvious questions about the non-symmetry of the part, for example.