Actually, when you create Hub, by clicking "Start A New Hub", you create a new page automatically. You then can work with the tools available to create your hub. If you choose to type your "text" for which you plan for the Hub, inside another program, yes you can copy and paste it into text capsules.
You automatically get a copyright added to your content and could even go and register your content on copyright.com if need be.
If you are unfamiliar with the TOS of HubPages and GOOGLE Adsense, then I would suggest to re-read them, so as to make sure your content is in line with them. They do not have to check your work, but do, when their bots/spiders crawl over your page.