CREATE TABLE table_53124 ("City district" TEXT, "Area km\\u00b2" TEXT, "Population 2007 census ( hab ) " TEXT, "Housing  ( 2007 ) " TEXT, "Density  ( hab/km\\u00b2 ) " TEXT, "Elevation msl" TEXT)

What is the area of the city with a density of 8,546.1?
SELECT "Area km\u00b2" FROM table_53124 WHERE "Density (hab/km\u00b2)" = '8,546.1'
SELECT "Area km\u00b2" FROM "table_53124" WHERE "Density (hab/km\u00b2)" = '8,546.1'