I have HTML code for my website that I designed on Dreamweaver. All I want to do is copy and paste the HTML onto Bravenet as my site is currently hosted by Bravenet.
How do I do this?

"copy and paste"?
I'm assuming you mean "upload" as your subject line more sanely suggests.

If you already have a website, use a ftp-program. (If you go to the Hosting forum, the sticky message on top will list a number of programs you can use)

I also believe that Dreamweaver has it's own facilities for uploading.

Or, you can use one of the options in File Manager to upload your files. Depending on the size of your site and how frequently you intend to update, this may be quicker than either installing a new program, or learning a new feature of Dreamweaver.

(The typical wedding site, say. A welcome page, a how2getthere page and no updates unless one of you has a change of heart)

Sign on and click the FTP tab for more information.