For changing the Address you should edit Title and Text element
For changing the position of this box, you can edit Free Position Element.
Instead Quick Contact also you can create any page and assign it.
For changing Copyright text go to Theme Options > Footer > Bottom of Footer > Icon and Text Element
This section is Footer and this 1 column is Widget, You can edit Widget from Appearance > Widgets
In widgets you can find Footer 1 sidebar area and you can add your wanted widget or edit current widget.
For changing background of Footer, Go to Theme Options > Footer > Footer Widgets > Container Style Kit
For changing background of this section, Go to Theme Options > Footer > Bottom of Footer > Row Container Style Kit