Unable to change copyright name

Hi,

You’re not going to be able to see this because the site is hidden behind a “Coming Soon” page. I need to change the name in the copyright. At first I thought it was pulling from the site title but changing the site title doesn’t lead to a change in the footer. The site title (cosmetic) and copyright (legal) should be different.
I also tried putting a copy of the footer.php in the child theme and editing it but my change isn’t showing up. I’m not great with .php so this isn’t surprising. What do I need to do to make this change?

Thank you

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