Edit Copyright line in Spacious theme

I’ve been reading about this thread in old postings, but none of them gave me the answer. I just need to know where I can find the “footer copyright line” to edit it. if you know how to do this, just tell me the path (mywebsite/wp-content/themes/mytheme/ whateverfile.php) I’ve been looking in all files and I know that line most be somewhere inside my wordpress directory. Don’t worry if I have child-theme I have my setup done, I just need to edit this line in my footer and please be simple I’m not a php coder.
Thank you very much