Welcome to the forum!
Am I correct in assuming that the name in your title is a typo, and the domain is actually CopilotAItrain(com)?
If so, it's a bit clunky. I'm not seeing any value beyond what you paid to acquire it.
When buying a name, always be sure to ask yourself:
- who they buyer(s) would be
- if this is the best version of this name
- if the name is intuitive and clear in its meaning