I have found two ways to do this, and I really don't have a strong preference for either. I would flip a coin and share only one here, but, given that neither of these processes is technically a Google tool, there is the possibility one or both may stop working in the future - sort of like "Labs" in Gmail: not officially supported, but use and enjoy it while you can.
So, up-front, here are two links for you to bookmark in your browser:
A. labnol.org/xcopy
B. http://tools.gappstips.com/drive/copy-folder/#
Here are the basic processes for both:
A:
1. Click the "A" link above. It will take you to a page that asks you to give the tool access to your Google Drive:
The other process (B) is similar.
1. Authorize the app:
2. Indicate the source folder:
3. Name the target folder, click the "Copy files" checkbox. and click the "Preview" button:
5. Your folder will be copied and placed right where you can get to it:








