New Copyright Footer

Hello,

It’s me again (I’m sorry!).

I’m trying to create a custom copyright footer. How would I go about doing this?
I have tried editing the theme-hooks.php page, but this does not seem to work.

I have tried removing the current business_cast_footer_copyright() function, but I think I’m doing this incorrectly, see code below:

function remove_bscast_copyright_footer(){
    remove_action( 'business_cast_action_footer','business_cast_footer_copyright', 10 );
}

add_action( 'business_cast_footer_copyright', 'remove_bscast_copyright_footer', 10 );

However, this does not remove the current copyright footer. Do you have any advice on this, and where to implement my do_action('custom_copyright_footer', 'custom_copyright_footer'); ?