Originally posted by: JackMDS
When you copy from a Web page, you are not necessarily just copy the text that you see on the screen.
Depending on how the page was authored, you copy parts of the html code too.
So in this case the code included this IP, and when you paste it the application tried to connect to it.
The IP belongs to a Hosting service and it is probably used by the client that you copy the info from.